Vietnamese Language:
Vietnamese (tieng Viet, or less commonly Viet ngu) is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam. It is part of the Austroasiatic language family, of which it has the most speakers by a significant margin (several times larger than the other Austroasiatic languages put together). Much of Vietnamese vocabulary has been borrowed from Chinese, most notably Cantonese, especially words that denote abstract ideas (in the same way European languages borrow from Latin and Greek), and it was formerly written using the Chinese writing system, albeit in a modified format and was given vernacular pronunciation. As a byproduct of French colonial rule, the language displays some influence from French, and the Vietnamese writing system in use today is an adapted version of the Latin alphabet, with additional diacritics for tones and certain letters.

Hindi Language:
Standard Hindi, or more precisely Modern Standard Hindi, also known as Manak Hindi (Devanagari), High Hindi, Nagari Hindi, and Literary Hindi, is a standardised and sanskritised register of the Hindustani language derived from the khariboli dialect of Delhi. It is one of the 22 official languages of India and is used as the primary official language of the Republic of India. The spoken Hindi dialects form an extensive dialect continuum of the Indic language family, bounded on the northwest and west by Punjabi, Sindhi, Gujarati and Marathi; on the southeast by Oriya; on the east by Maithili and Bengali; and on the north by Nepali. The population of this core Hindi speaking region is approximately 140 million. The number of speakers of Standard Hindi is ambiguous. According to the 2001 Indian census, 258 million people in India regarded their native language to be "Hindi". However, this includes large numbers of speakers of Hindi dialects besides Standard Hindi.